/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 * Copyright (C) 2008 - 2013 Red Hat, Inc.
 */

#ifndef __NETWORKMANAGER_IP4_CONFIG_H__
#define __NETWORKMANAGER_IP4_CONFIG_H__

#include "nm-setting-connection.h"

#include "nm-setting-ip4-config.h"

#include "libnm-glib-aux/nm-dedup-multi.h"
#include "libnm-platform/nmp-object.h"
#include "nm-ip-config.h"

/*****************************************************************************/

typedef enum _NMIPConfigFlags {
    NM_IP_CONFIG_FLAG_NONE = 0,

    /* if set, then the merge flag NM_IP_CONFIG_MERGE_NO_DEFAULT_ROUTES gets
     * ignored during merge. */
    NM_IP_CONFIG_FLAGS_IGNORE_MERGE_NO_DEFAULT_ROUTES = (1ull << 0),
} NMIPConfigFlags;

typedef struct {
    NMDedupMultiIdxType parent;
    NMPObjectType       obj_type;
} NMIPConfigDedupMultiIdxType;

void nm_ip_config_dedup_multi_idx_type_init(NMIPConfigDedupMultiIdxType *idx_type,
                                            NMPObjectType                obj_type);

/*****************************************************************************/

void nm_ip_config_iter_ip4_address_init(NMDedupMultiIter *iter, const NMIP4Config *self);
void nm_ip_config_iter_ip4_route_init(NMDedupMultiIter *iter, const NMIP4Config *self);

#define nm_ip_config_iter_ip4_address_for_each(iter, self, address) \
    for (nm_ip_config_iter_ip4_address_init((iter), (self));        \
         nm_platform_dedup_multi_iter_next_ip4_address((iter), (address));)

#define nm_ip_config_iter_ip4_route_for_each(iter, self, route) \
    for (nm_ip_config_iter_ip4_route_init((iter), (self));      \
         nm_platform_dedup_multi_iter_next_ip4_route((iter), (route));)

/*****************************************************************************/

const NMPObject *_nm_ip_config_best_default_route_find_better(const NMPObject *obj_cur,
                                                              const NMPObject *obj_cmp);
gboolean         _nm_ip_config_best_default_route_merge(const NMPObject **best_default_route,
                                                        const NMPObject * new_candidate);

/*****************************************************************************/

gboolean _nm_ip_config_add_obj(NMDedupMultiIndex *          multi_idx,
                               NMIPConfigDedupMultiIdxType *idx_type,
                               int                          ifindex,
                               const NMPObject *            obj_new,
                               const NMPlatformObject *     pl_new,
                               gboolean                     merge,
                               gboolean                     append_force,
                               const NMPObject **           out_obj_old,
                               const NMPObject **           out_obj_new);

const NMDedupMultiEntry *_nm_ip_config_lookup_ip_route(const NMDedupMultiIndex *          multi_idx,
                                                       const NMIPConfigDedupMultiIdxType *idx_type,
                                                       const NMPObject *                  needle,
                                                       NMPlatformIPRouteCmpType           cmp_type);

/*****************************************************************************/

#define NM_TYPE_IP4_CONFIG (nm_ip4_config_get_type())
#define NM_IP4_CONFIG(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj), NM_TYPE_IP4_CONFIG, NMIP4Config))
#define NM_IP4_CONFIG_CLASS(klass) \
    (G_TYPE_CHECK_CLASS_CAST((klass), NM_TYPE_IP4_CONFIG, NMIP4ConfigClass))
#define NM_IS_IP4_CONFIG(obj)         (G_TYPE_CHECK_INSTANCE_TYPE((obj), NM_TYPE_IP4_CONFIG))
#define NM_IS_IP4_CONFIG_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass), NM_TYPE_IP4_CONFIG))
#define NM_IP4_CONFIG_GET_CLASS(obj) \
    (G_TYPE_INSTANCE_GET_CLASS((obj), NM_TYPE_IP4_CONFIG, NMIP4ConfigClass))

typedef struct _NMIP4ConfigClass NMIP4ConfigClass;

/* internal */
#define NM_IP4_CONFIG_MULTI_IDX "multi-idx"
#define NM_IP4_CONFIG_IFINDEX   "ifindex"

/* public*/
#define NM_IP4_CONFIG_ADDRESS_DATA     "address-data"
#define NM_IP4_CONFIG_ROUTE_DATA       "route-data"
#define NM_IP4_CONFIG_GATEWAY          "gateway"
#define NM_IP4_CONFIG_NAMESERVER_DATA  "nameserver-data"
#define NM_IP4_CONFIG_DOMAINS          "domains"
#define NM_IP4_CONFIG_SEARCHES         "searches"
#define NM_IP4_CONFIG_DNS_OPTIONS      "dns-options"
#define NM_IP4_CONFIG_DNS_PRIORITY     "dns-priority"
#define NM_IP4_CONFIG_WINS_SERVER_DATA "wins-server-data"

/* deprecated */
#define NM_IP4_CONFIG_ADDRESSES    "addresses"
#define NM_IP4_CONFIG_ROUTES       "routes"
#define NM_IP4_CONFIG_NAMESERVERS  "nameservers"
#define NM_IP4_CONFIG_WINS_SERVERS "wins-servers"

GType nm_ip4_config_get_type(void);

NMIP4Config *nm_ip4_config_new(NMDedupMultiIndex *multi_idx, int ifindex);

NMIP4Config *nm_ip4_config_clone(const NMIP4Config *self);
int          nm_ip4_config_get_ifindex(const NMIP4Config *self);

NMDedupMultiIndex *nm_ip4_config_get_multi_idx(const NMIP4Config *self);

NMIP4Config *nm_ip4_config_capture(NMDedupMultiIndex *multi_idx, NMPlatform *platform, int ifindex);

void nm_ip4_config_add_dependent_routes(NMIP4Config *self,
                                        guint32      route_table,
                                        guint32      route_metric,
                                        gboolean     is_vrf,
                                        GPtrArray ** out_ip4_dev_route_blacklist);

gboolean nm_ip4_config_commit(const NMIP4Config *    self,
                              NMPlatform *           platform,
                              NMIPRouteTableSyncMode route_table_sync);

void       nm_ip4_config_merge_setting(NMIP4Config *            self,
                                       NMSettingIPConfig *      setting,
                                       NMSettingConnectionMdns  mdns,
                                       NMSettingConnectionLlmnr llmnr,
                                       guint32                  route_table,
                                       guint32                  route_metric);
NMSetting *nm_ip4_config_create_setting(const NMIP4Config *self);

void         nm_ip4_config_merge(NMIP4Config *        dst,
                                 const NMIP4Config *  src,
                                 NMIPConfigMergeFlags merge_flags,
                                 guint32              default_route_metric_penalty);
void         nm_ip4_config_subtract(NMIP4Config *      dst,
                                    const NMIP4Config *src,
                                    guint32            default_route_metric_penalty);
void         nm_ip4_config_intersect(NMIP4Config *      dst,
                                     const NMIP4Config *src,
                                     gboolean           intersect_addresses,
                                     gboolean           intersect_routes,
                                     guint32            default_route_metric_penalty);
NMIP4Config *nm_ip4_config_intersect_alloc(const NMIP4Config *a,
                                           const NMIP4Config *b,
                                           gboolean           intersect_addresses,
                                           gboolean           intersect_routes,
                                           guint32            default_route_metric_penalty);
gboolean
nm_ip4_config_replace(NMIP4Config *dst, const NMIP4Config *src, gboolean *relevant_changes);

const NMPObject *nm_ip4_config_best_default_route_get(const NMIP4Config *self);
const NMPObject *_nm_ip4_config_best_default_route_find(const NMIP4Config *self);

in_addr_t nmtst_ip4_config_get_gateway(NMIP4Config *config);

NMSettingConnectionMdns  nm_ip4_config_mdns_get(const NMIP4Config *self);
void                     nm_ip4_config_mdns_set(NMIP4Config *self, NMSettingConnectionMdns mdns);
NMSettingConnectionLlmnr nm_ip4_config_llmnr_get(const NMIP4Config *self);
void                     nm_ip4_config_llmnr_set(NMIP4Config *self, NMSettingConnectionLlmnr llmnr);

void nm_ip4_config_set_config_flags(NMIP4Config *self, NMIPConfigFlags flags, NMIPConfigFlags mask);
NMIPConfigFlags nm_ip4_config_get_config_flags(const NMIP4Config *self);

const NMDedupMultiHeadEntry *nm_ip4_config_lookup_addresses(const NMIP4Config *self);
void                         nm_ip4_config_reset_addresses(NMIP4Config *self);
void  nm_ip4_config_add_address(NMIP4Config *self, const NMPlatformIP4Address *address);
void  _nmtst_ip4_config_del_address(NMIP4Config *self, guint i);
guint nm_ip4_config_get_num_addresses(const NMIP4Config *self);
const NMPlatformIP4Address *nm_ip4_config_get_first_address(const NMIP4Config *self);
const NMPlatformIP4Address *_nmtst_ip4_config_get_address(const NMIP4Config *self, guint i);
gboolean nm_ip4_config_address_exists(const NMIP4Config *self, const NMPlatformIP4Address *address);

const NMDedupMultiHeadEntry *nm_ip4_config_lookup_routes(const NMIP4Config *self);
void                         nm_ip4_config_reset_routes(NMIP4Config *self);
void                         nm_ip4_config_add_route(NMIP4Config *             self,
                                                     const NMPlatformIP4Route *route,
                                                     const NMPObject **        out_obj_new);
void                         _nmtst_ip4_config_del_route(NMIP4Config *self, guint i);
guint                        nm_ip4_config_get_num_routes(const NMIP4Config *self);
const NMPlatformIP4Route *   _nmtst_ip4_config_get_route(const NMIP4Config *self, guint i);

const NMPlatformIP4Route *nm_ip4_config_get_direct_route_for_host(const NMIP4Config *self,
                                                                  in_addr_t          host,
                                                                  guint32            route_table);
void                      nm_ip4_config_update_routes_metric(NMIP4Config *self, gint64 metric);

void nm_ip4_config_reset_nameservers(NMIP4Config *self);
void nm_ip4_config_add_nameserver(NMIP4Config *self, guint32 nameserver);

static inline void
_nm_ip4_config_add_nameserver(NMIP4Config *self, const guint32 *nameserver)
{
    nm_ip4_config_add_nameserver(self, *nameserver);
}

void             nm_ip4_config_del_nameserver(NMIP4Config *self, guint i);
guint            nm_ip4_config_get_num_nameservers(const NMIP4Config *self);
guint32          nm_ip4_config_get_nameserver(const NMIP4Config *self, guint i);
const in_addr_t *_nm_ip4_config_get_nameserver(const NMIP4Config *self, guint i);

void        nm_ip4_config_reset_domains(NMIP4Config *self);
void        nm_ip4_config_add_domain(NMIP4Config *self, const char *domain);
void        nm_ip4_config_del_domain(NMIP4Config *self, guint i);
guint       nm_ip4_config_get_num_domains(const NMIP4Config *self);
const char *nm_ip4_config_get_domain(const NMIP4Config *self, guint i);

void        nm_ip4_config_reset_searches(NMIP4Config *self);
void        nm_ip4_config_add_search(NMIP4Config *self, const char *search);
void        nm_ip4_config_del_search(NMIP4Config *self, guint i);
guint       nm_ip4_config_get_num_searches(const NMIP4Config *self);
const char *nm_ip4_config_get_search(const NMIP4Config *self, guint i);

void        nm_ip4_config_reset_dns_options(NMIP4Config *self);
void        nm_ip4_config_add_dns_option(NMIP4Config *self, const char *option);
void        nm_ip4_config_del_dns_option(NMIP4Config *self, guint i);
guint       nm_ip4_config_get_num_dns_options(const NMIP4Config *self);
const char *nm_ip4_config_get_dns_option(const NMIP4Config *self, guint i);

void nm_ip4_config_set_dns_priority(NMIP4Config *self, int priority);
int  nm_ip4_config_get_dns_priority(const NMIP4Config *self);

void        nm_ip4_config_reset_nis_servers(NMIP4Config *self);
void        nm_ip4_config_add_nis_server(NMIP4Config *self, guint32 nis);
void        nm_ip4_config_del_nis_server(NMIP4Config *self, guint i);
guint       nm_ip4_config_get_num_nis_servers(const NMIP4Config *self);
guint32     nm_ip4_config_get_nis_server(const NMIP4Config *self, guint i);
void        nm_ip4_config_set_nis_domain(NMIP4Config *self, const char *domain);
const char *nm_ip4_config_get_nis_domain(const NMIP4Config *self);

void    nm_ip4_config_reset_wins(NMIP4Config *self);
void    nm_ip4_config_add_wins(NMIP4Config *self, guint32 wins);
void    nm_ip4_config_del_wins(NMIP4Config *self, guint i);
guint   nm_ip4_config_get_num_wins(const NMIP4Config *self);
guint32 nm_ip4_config_get_wins(const NMIP4Config *self, guint i);

void             nm_ip4_config_set_mtu(NMIP4Config *self, guint32 mtu, NMIPConfigSource source);
guint32          nm_ip4_config_get_mtu(const NMIP4Config *self);
NMIPConfigSource nm_ip4_config_get_mtu_source(const NMIP4Config *self);

void     nm_ip4_config_set_metered(NMIP4Config *self, gboolean metered);
gboolean nm_ip4_config_get_metered(const NMIP4Config *self);

void     nm_ip4_config_set_never_default(NMIP4Config *self, gboolean never_default);
gboolean nm_ip4_config_get_never_default(const NMIP4Config *self);

const NMPObject *nm_ip4_config_nmpobj_lookup(const NMIP4Config *self, const NMPObject *needle);
gboolean         nm_ip4_config_nmpobj_remove(NMIP4Config *self, const NMPObject *needle);

void     nm_ip4_config_hash(const NMIP4Config *self, GChecksum *sum, gboolean dns_only);
gboolean nm_ip4_config_equal(const NMIP4Config *a, const NMIP4Config *b);

gboolean _nm_ip_config_check_and_add_domain(GPtrArray *array, const char *domain);

void
nm_ip_config_dump(const NMIPConfig *self, const char *detail, NMLogLevel level, NMLogDomain domain);

/*****************************************************************************/

#include "nm-ip6-config.h"

static inline gboolean
NM_IS_IP_CONFIG_ADDR_FAMILY(gconstpointer config, int addr_family)
{
    if (addr_family == AF_UNSPEC)
        return NM_IS_IP4_CONFIG(config) || NM_IS_IP6_CONFIG(config);
    if (addr_family == AF_INET)
        return NM_IS_IP4_CONFIG(config);
    if (addr_family == AF_INET6)
        return NM_IS_IP6_CONFIG(config);
    g_return_val_if_reached(FALSE);
}

#if _NM_CC_SUPPORT_GENERIC
    /* _NM_IS_IP_CONFIG() is a bit unusual. If _Generic() is supported,
 * it checks whether @config is either NM_IS_IP4_CONFIG() or NM_IS_IP6_CONFIG(),
 * depending on the pointer type of @config.
 *
 * For example, with _Generic() support, the following assertions would fail:
 *    NMIP6Config *ptr = (NMIP6Config *) nm_ip4_config_new(...);
 *    g_assert (_NM_IS_IP_CONFIG (ptr, ptr));
 * but the following would pass:
 *    NMIP4Config *ptr = nm_ip4_config_new(...);
 *    g_assert (_NM_IS_IP_CONFIG (ptr, ptr));
 */
    #define _NM_IS_IP_CONFIG(typeexpr, config)    \
        ({                                        \
            const void *const _config = (config); \
            _Generic ((typeexpr), \
                  const void        *const: (NM_IS_IP4_CONFIG (_config) || NM_IS_IP6_CONFIG (_config)), \
                  const void        *     : (NM_IS_IP4_CONFIG (_config) || NM_IS_IP6_CONFIG (_config)), \
                        void        *const: (NM_IS_IP4_CONFIG (_config) || NM_IS_IP6_CONFIG (_config)), \
                        void        *     : (NM_IS_IP4_CONFIG (_config) || NM_IS_IP6_CONFIG (_config)), \
                  const NMIPConfig  *const: (NM_IS_IP4_CONFIG (_config) || NM_IS_IP6_CONFIG (_config)), \
                  const NMIPConfig  *     : (NM_IS_IP4_CONFIG (_config) || NM_IS_IP6_CONFIG (_config)), \
                        NMIPConfig  *const: (NM_IS_IP4_CONFIG (_config) || NM_IS_IP6_CONFIG (_config)), \
                        NMIPConfig  *     : (NM_IS_IP4_CONFIG (_config) || NM_IS_IP6_CONFIG (_config)), \
                  const NMIP4Config *const: (NM_IS_IP4_CONFIG (_config)), \
                  const NMIP4Config *     : (NM_IS_IP4_CONFIG (_config)), \
                        NMIP4Config *const: (NM_IS_IP4_CONFIG (_config)), \
                        NMIP4Config *     : (NM_IS_IP4_CONFIG (_config)), \
                  const NMIP6Config *const: (NM_IS_IP6_CONFIG (_config)), \
                  const NMIP6Config *     : (NM_IS_IP6_CONFIG (_config)), \
                        NMIP6Config *const: (NM_IS_IP6_CONFIG (_config)), \
                        NMIP6Config *     : (NM_IS_IP6_CONFIG (_config)));               \
        })
#else
    #define _NM_IS_IP_CONFIG(typeexpr, config) NM_IS_IP_CONFIG(config)
#endif

#define NM_IP_CONFIG_CAST(config)                                                    \
    ({                                                                               \
        const void *const _configx = (config);                                       \
                                                                                     \
        nm_assert(!_configx || _NM_IS_IP_CONFIG((config), _configx));                \
        NM_CONSTCAST_FULL(NMIPConfig, (config), _configx, NMIP4Config, NMIP6Config); \
    })

static inline gboolean
nm_ip_config_is_ipv4(const NMIPConfig *config)
{
    if (NM_IP_CONFIG_GET_CLASS(config)->is_ipv4) {
        nm_assert(NM_IS_IP4_CONFIG(config));
        return TRUE;
    }
    nm_assert(NM_IS_IP6_CONFIG(config));
    return FALSE;
}

static inline int
nm_ip_config_get_addr_family(const NMIPConfig *config)
{
    return nm_ip_config_is_ipv4(config) ? AF_INET : AF_INET6;
}

#define _NM_IP_CONFIG_DISPATCH(config, v4_func, v6_func, ...)       \
    G_STMT_START                                                    \
    {                                                               \
        gconstpointer _config = (config);                           \
                                                                    \
        if (nm_ip_config_is_ipv4(_config)) {                        \
            return v4_func((NMIP4Config *) _config, ##__VA_ARGS__); \
        } else {                                                    \
            return v6_func((NMIP6Config *) _config, ##__VA_ARGS__); \
        }                                                           \
    }                                                               \
    G_STMT_END

#define _NM_IP_CONFIG_DISPATCH_VOID(config, v4_func, v6_func, ...) \
    G_STMT_START                                                   \
    {                                                              \
        gconstpointer _config = (config);                          \
                                                                   \
        if (nm_ip_config_is_ipv4(_config)) {                       \
            v4_func((NMIP4Config *) _config, ##__VA_ARGS__);       \
        } else {                                                   \
            v6_func((NMIP6Config *) _config, ##__VA_ARGS__);       \
        }                                                          \
    }                                                              \
    G_STMT_END

static inline int
nm_ip_config_get_ifindex(const NMIPConfig *self)
{
    _NM_IP_CONFIG_DISPATCH(self, nm_ip4_config_get_ifindex, nm_ip6_config_get_ifindex);
}

static inline void
nm_ip_config_hash(const NMIPConfig *self, GChecksum *sum, gboolean dns_only)
{
    _NM_IP_CONFIG_DISPATCH_VOID(self, nm_ip4_config_hash, nm_ip6_config_hash, sum, dns_only);
}

static inline gconstpointer
nm_ip_config_get_first_address(NMIPConfig *self)
{
    _NM_IP_CONFIG_DISPATCH(self, nm_ip4_config_get_first_address, nm_ip6_config_get_first_address);
}

static inline void
nm_ip_config_iter_ip_address_init(NMDedupMultiIter *iter, const NMIPConfig *self)
{
    if (nm_ip_config_is_ipv4(self))
        nm_ip_config_iter_ip4_address_init(iter, (const NMIP4Config *) self);
    else
        nm_ip_config_iter_ip6_address_init(iter, (const NMIP6Config *) self);
}

#define nm_ip_config_iter_ip_address_for_each(iter, self, address) \
    for (nm_ip_config_iter_ip_address_init((iter), (self));        \
         nm_platform_dedup_multi_iter_next_ip_address((iter), (address));)

static inline void
nm_ip_config_iter_ip_route_init(NMDedupMultiIter *iter, const NMIPConfig *self)
{
    if (nm_ip_config_is_ipv4(self))
        nm_ip_config_iter_ip4_route_init(iter, (const NMIP4Config *) self);
    else
        nm_ip_config_iter_ip6_route_init(iter, (const NMIP6Config *) self);
}

#define nm_ip_config_iter_ip_route_for_each(iter, self, route) \
    for (nm_ip_config_iter_ip_route_init((iter), (self));      \
         nm_platform_dedup_multi_iter_next_ip_route((iter), (route));)

static inline void
nm_ip_config_add_address(NMIPConfig *self, const NMPlatformIPAddress *address)
{
    _NM_IP_CONFIG_DISPATCH_VOID(self,
                                nm_ip4_config_add_address,
                                nm_ip6_config_add_address,
                                (gconstpointer) address);
}

static inline void
nm_ip_config_reset_addresses(NMIPConfig *self)
{
    _NM_IP_CONFIG_DISPATCH_VOID(self, nm_ip4_config_reset_addresses, nm_ip6_config_reset_addresses);
}

static inline void
nm_ip_config_add_route(NMIPConfig *self,
                       const NMPlatformIPRoute *new,
                       const NMPObject **out_obj_new)
{
    _NM_IP_CONFIG_DISPATCH_VOID(self,
                                nm_ip4_config_add_route,
                                nm_ip6_config_add_route,
                                (gpointer) new,
                                out_obj_new);
}

static inline void
nm_ip_config_reset_routes(NMIPConfig *self)
{
    _NM_IP_CONFIG_DISPATCH_VOID(self, nm_ip4_config_reset_routes, nm_ip6_config_reset_routes);
}

static inline int
nm_ip_config_get_dns_priority(const NMIPConfig *self)
{
    _NM_IP_CONFIG_DISPATCH(self, nm_ip4_config_get_dns_priority, nm_ip6_config_get_dns_priority);
}

static inline void
nm_ip_config_set_dns_priority(NMIPConfig *self, int priority)
{
    _NM_IP_CONFIG_DISPATCH_VOID(self,
                                nm_ip4_config_set_dns_priority,
                                nm_ip6_config_set_dns_priority,
                                priority);
}

static inline void
nm_ip_config_add_nameserver(NMIPConfig *self, const NMIPAddr *ns)
{
    _NM_IP_CONFIG_DISPATCH_VOID(self,
                                _nm_ip4_config_add_nameserver,
                                nm_ip6_config_add_nameserver,
                                (gconstpointer) ns);
}

static inline void
nm_ip_config_reset_nameservers(const NMIPConfig *self)
{
    _NM_IP_CONFIG_DISPATCH_VOID(self,
                                nm_ip4_config_reset_nameservers,
                                nm_ip6_config_reset_nameservers);
}

static inline guint
nm_ip_config_get_num_nameservers(const NMIPConfig *self)
{
    _NM_IP_CONFIG_DISPATCH(self,
                           nm_ip4_config_get_num_nameservers,
                           nm_ip6_config_get_num_nameservers);
}

static inline gconstpointer
nm_ip_config_get_nameserver(const NMIPConfig *self, guint i)
{
    _NM_IP_CONFIG_DISPATCH(self, _nm_ip4_config_get_nameserver, nm_ip6_config_get_nameserver, i);
}

static inline guint
nm_ip_config_get_num_domains(const NMIPConfig *self)
{
    _NM_IP_CONFIG_DISPATCH(self, nm_ip4_config_get_num_domains, nm_ip6_config_get_num_domains);
}

static inline const char *
nm_ip_config_get_domain(const NMIPConfig *self, guint i)
{
    _NM_IP_CONFIG_DISPATCH(self, nm_ip4_config_get_domain, nm_ip6_config_get_domain, i);
}

static inline void
nm_ip_config_reset_searches(const NMIPConfig *self)
{
    _NM_IP_CONFIG_DISPATCH_VOID(self, nm_ip4_config_reset_searches, nm_ip6_config_reset_searches);
}

static inline void
nm_ip_config_add_search(const NMIPConfig *self, const char *new)
{
    _NM_IP_CONFIG_DISPATCH_VOID(self, nm_ip4_config_add_search, nm_ip6_config_add_search, new);
}

static inline guint
nm_ip_config_get_num_searches(const NMIPConfig *self)
{
    _NM_IP_CONFIG_DISPATCH(self, nm_ip4_config_get_num_searches, nm_ip6_config_get_num_searches);
}

static inline const char *
nm_ip_config_get_search(const NMIPConfig *self, guint i)
{
    _NM_IP_CONFIG_DISPATCH(self, nm_ip4_config_get_search, nm_ip6_config_get_search, i);
}

static inline guint
nm_ip_config_get_num_dns_options(const NMIPConfig *self)
{
    _NM_IP_CONFIG_DISPATCH(self,
                           nm_ip4_config_get_num_dns_options,
                           nm_ip6_config_get_num_dns_options);
}

static inline const char *
nm_ip_config_get_dns_option(const NMIPConfig *self, guint i)
{
    _NM_IP_CONFIG_DISPATCH(self, nm_ip4_config_get_dns_option, nm_ip6_config_get_dns_option, i);
}

static inline const NMPObject *
nm_ip_config_best_default_route_get(const NMIPConfig *self)
{
    _NM_IP_CONFIG_DISPATCH(self,
                           nm_ip4_config_best_default_route_get,
                           nm_ip6_config_best_default_route_get);
}

static inline NMIPConfigFlags
nm_ip_config_get_config_flags(const NMIPConfig *self)
{
    _NM_IP_CONFIG_DISPATCH(self, nm_ip4_config_get_config_flags, nm_ip6_config_get_config_flags);
}

static inline void
nm_ip_config_set_config_flags(NMIPConfig *self, NMIPConfigFlags flags, NMIPConfigFlags mask)
{
    _NM_IP_CONFIG_DISPATCH_VOID(self,
                                nm_ip4_config_set_config_flags,
                                nm_ip6_config_set_config_flags,
                                flags,
                                mask);
}

static inline gboolean
nm_ip_config_get_never_default(const NMIPConfig *self)
{
    _NM_IP_CONFIG_DISPATCH(self, nm_ip4_config_get_never_default, nm_ip6_config_get_never_default);
}

static inline void
nm_ip_config_set_never_default(NMIPConfig *self, gboolean never_default)
{
    _NM_IP_CONFIG_DISPATCH_VOID(self,
                                nm_ip4_config_set_never_default,
                                nm_ip6_config_set_never_default,
                                never_default);
}

#define _NM_IP_CONFIG_DISPATCH_SET_OP(_return, dst, src, v4_func, v6_func, ...)               \
    G_STMT_START                                                                              \
    {                                                                                         \
        gpointer      _dst = (dst);                                                           \
        gconstpointer _src = (src);                                                           \
                                                                                              \
        if (nm_ip_config_is_ipv4(_dst)) {                                                     \
            _return v4_func((NMIP4Config *) _dst, (const NMIP4Config *) _src, ##__VA_ARGS__); \
        } else {                                                                              \
            _return v6_func((NMIP6Config *) _dst, (const NMIP6Config *) _src, ##__VA_ARGS__); \
        }                                                                                     \
    }                                                                                         \
    G_STMT_END

static inline void
nm_ip_config_intersect(NMIPConfig *      dst,
                       const NMIPConfig *src,
                       gboolean          intersect_addresses,
                       gboolean          intersect_routes,
                       guint32           default_route_metric_penalty)
{
    _NM_IP_CONFIG_DISPATCH_SET_OP(,
                                  dst,
                                  src,
                                  nm_ip4_config_intersect,
                                  nm_ip6_config_intersect,
                                  intersect_addresses,
                                  intersect_routes,
                                  default_route_metric_penalty);
}

static inline void
nm_ip_config_subtract(NMIPConfig *dst, const NMIPConfig *src, guint32 default_route_metric_penalty)
{
    _NM_IP_CONFIG_DISPATCH_SET_OP(,
                                  dst,
                                  src,
                                  nm_ip4_config_subtract,
                                  nm_ip6_config_subtract,
                                  default_route_metric_penalty);
}

static inline void
nm_ip_config_merge(NMIPConfig *         dst,
                   const NMIPConfig *   src,
                   NMIPConfigMergeFlags merge_flags,
                   guint32              default_route_metric_penalty)
{
    _NM_IP_CONFIG_DISPATCH_SET_OP(,
                                  dst,
                                  src,
                                  nm_ip4_config_merge,
                                  nm_ip6_config_merge,
                                  merge_flags,
                                  default_route_metric_penalty);
}

static inline gboolean
nm_ip_config_replace(NMIPConfig *dst, const NMIPConfig *src, gboolean *relevant_changes)
{
    _NM_IP_CONFIG_DISPATCH_SET_OP(
        return, dst, src, nm_ip4_config_replace, nm_ip6_config_replace, relevant_changes);
}

static inline NMIPConfig *
nm_ip_config_intersect_alloc(const NMIPConfig *a,
                             const NMIPConfig *b,
                             gboolean          intersect_addresses,
                             gboolean          intersect_routes,
                             guint32           default_route_metric_penalty)
{
    if (nm_ip_config_is_ipv4(a)) {
        nm_assert(NM_IS_IP4_CONFIG(a));
        nm_assert(NM_IS_IP4_CONFIG(b));
        return (NMIPConfig *) nm_ip4_config_intersect_alloc((const NMIP4Config *) a,
                                                            (const NMIP4Config *) b,
                                                            intersect_addresses,
                                                            intersect_routes,
                                                            default_route_metric_penalty);
    } else {
        nm_assert(NM_IS_IP6_CONFIG(a));
        nm_assert(NM_IS_IP6_CONFIG(b));
        return (NMIPConfig *) nm_ip6_config_intersect_alloc((const NMIP6Config *) a,
                                                            (const NMIP6Config *) b,
                                                            intersect_addresses,
                                                            intersect_routes,
                                                            default_route_metric_penalty);
    }
}

#endif /* __NETWORKMANAGER_IP4_CONFIG_H__ */
